ZU4420MB is a model-specific Enerpac ZU4 Electric Hydraulic Pump choice for double-acting advance / hold / retract operation. Its four-way style of control is appropriate where both directions are hydraulically powered, while the center hold position allows movement to be paused between commands.
Understanding the ZU4420MB Arrangement
Enerpac’s ZU4 platform uses the Z-Class two-stage pump design with a universal electric motor, combining high-pressure capability with higher low-pressure flow. Available oil volume is set by the 5.2 gal reservoir, so the connected equipment’s oil requirement should be verified before final selection. A 1.7 hp motor drives the pump, with rated-pressure output specified at 60 in³/min @ 10,000 psi.
If the shortlist includes ZU4408MB, focus on the configuration change: reservoir capacity is 5.2 gal on ZU4420MB versus 1.8 gal on ZU4408MB. The remaining shared family characteristics should not obscure that difference.
Confirm that the connected equipment uses the double-acting circuit this model is configured to control.
Specifications
| Pump Series | ZU4 Series |
|---|---|
| Power Source | Electric |
| Maximum Operating Pressure | 10,000 psi |
| Rated Oil Flow | 60 in³/min @ 10,000 psi |
| Reservoir Capacity | 5.2 gal |
| Valve Model | VM43 |
| Valve Configuration | 4-way, 3-position manual valve |
| Valve Operation | Manual |
| Cylinder Compatibility | Double-Acting |
| Voltage | 115V |
| Phase | Single Phase |
| Frequency | 50/60 Hz |